Demountable rim



B. A. BRYON.

DEMOUNTABLE RIM.

APPLlcATloN man AP3.23.1915.

Patented Aug. 8,

2 SHEETSSHEET 2- 31a/vauro@ wilneooeo License.

Emme. Baron', or RIDGEFIELD, CONNECTICUT.

DEMOUNTIABLE RIM.

vSpecification of Letters Patent.

Patentes aug. s, raie.

Application aieafaprn 2a, 1915. serial No. 23,393.

To alli/whom it may concern:

Be it -kn'own that I, .BE-vn A. Enron, a citizen of the United States, res1d1ng at Ridgefield, in the county of Fairfield and State of Connecticut, have invented certain new and useful'Improvements in/Demountable Rims; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to new and useful improvements in demountable rims forl vehicles, and has for its `prmcipal obJect to pro- Yvide a device which will'ena-ble the user to easily vand quickly remove a tire from the '-wheel of a motor vehicle and substitute a new tire in place thereof.

Another object of the invention is to provide a demountable rim which may be easily and quickly slipped in place on the vehicle and which when in position be locked thereon to avoid danger of displacement.

A further object of the'invention is to pro vide a demountable rim formed `of two @parate interlocking rim sections which are capable of being firmly locked to ether wit'hout being attached to the rim o the wheel.

Still another and more specic object of the invention is to -provide a novel means for locking the demountable rim in ',place on the wheel rim in such a way as to prel vent the demountable rim from being accidentaliy detached and also to prevent the same from creeping on the wheel rim.l

Writ-h these and other objects in view, the' invention consists in the novel combinatini-i and arrangement of parts `which :will be fully set forth in the following specification and accompanying drawings, in which,

Figure l'is a vertical sectional view of a portion of a 7wheel rilnshowing the pneumatic tire in place, Fig. 2 is a View similar to Fig. 1 taken through one of the interiocired members showing the detailed construction of the same, Fig. 3 is a sideview Vof a port-ion of a wheel showing themethod of locking the tire holding rim" in place, Fig. 4 is a fragmentary view in elevation of the wheel rim, Fig.I 5 is a sectional view of the wheel rim takenon the plane of line 5 5 of Fig. 3, Fig. 6 is a sectional view taken on line 6-6 of Fig. 3, Fig. 7 is a detail perspective View of a modified form of ring holding element, Fig. 8 is a' sectional view taken .on the plane of line 8-.-8A of Fig.

7, and Fig. 9 .is a fragmentary perspective view of the lo'cking rings. f Referring nowvto the drawings in'detai'l,

the numeral l-designates as an entirety the wheel rim which comprises the body 2 havlng the flange 3 formed on the'periphery thereof. This body 2 is circularl in form and the' .flange Sextends beyond the lateral edges `thereof as clearly shown in Fig. 5. Formed at spaced intervals around the periphery of the body and extending upwardly therefrom' are the lugs 4 having formed near one end the recesses 5, the use of which will appear as the description proceeds. Formed in the flange 3 on the opposite side from the lugs 4 are the slots 6in which the eccentrics designated generallyl by the numeral 7 are mounted. Suitable depending ears 8 are formed beneath the slots on the flange, and through these ears and into the body 2 extend the pivot. pins 9 on which the eccentrics 7 are. mounted.

These eccentrics comprise the eccentric vdisks 10 fonied thereon the handles 11 and they are so constructed as to swing into the positions illustrated in Fig. 3 both by the It will thus be seen that erally by" the numeral 12, which comprises two separate rim elements 13 and 14. The rim element 13 1s formed wlth the annular recess 15 winch forms the tongue 16 which coperates with the tongue 17 formed on the rim section or element 14 1n forming a' smooth annular trough for the reception of the tire shoe 18. Formed at spaced intervals on the inner face of the rim section 13 -are the lugs 19 which are formed with the tongues 20, which tongues coperate with `the tongues 21 formed on the lugs 22 which are carried by the rim section 14. The lugs .2l form hooks, the bight portions of which receive the lugs 20, and it will be apparent that the two rim sections are rmly held together when the lugs 20 and 21 are in position. A suitable recess 23 is formed in each of the lugs 21 andextends throughout its entire length and forms a chamber in Which the spring 24 is mounted. IThis spring 24 is provided with. the offset portion 25 nearits free end, whichl oset portion rests in the notch 5 in the lug 4 of the Wheel rim 1 when the tire shoe 18 and demountable rim l12 are in place. Extending outwardly from each of the lugs 22 is a. cylindrical stem 26, on the end. ofwhich is rotatably mounted the turn .button 27, the use of which 'will appear as the description proceeds.

In order to hold the rims'ections in their 'interlocked position, the locking ring, designated generally by thenumeral 28, is provided, and this ring comprises the circular body 29 which is formed with the arms 30,

which arms extend angularly therefrom at' spaced intervals and engage the outer faces of the lugs 19 to hold the same against accidental displacement. This ring is formed at spaced intervals with slots 31 which are for the reception of the turn but-tons hereinbefore mentioned. These slots engage the extensions 26 and thereby prevent the ring from slipping and coming from its position on therim 12.

1n Fig. 8 there is shown a modified form of ring holding means in which` the lug 22, instead of being formed with the oval extension 26, is provided with an internal. screw-threaded bore for the reception of the pivot screw on which the hook 32 is mount as clearly illustratedin Figs. 7 and Q.

1t will be apparent from the foregoing that in use the shoe 1S is first placed between the rim sections 13 and 14 andthe two are then locked together as shown 1n the drawings. The ring 28 is then slipped in place,

as illustrated iii Fig. 2,'and the turn buttonsr turned so as to extend across the slots 31. It will be apparent that in this position the ring cannotcome loose without first turning the turn buttons to permit the same to pass through. the slots 31. It will ,also be evident that in this position the lug 21 cannot become disengaged with the lug 20 and the whole will be firmly locked in place and in readiness to be slipped on the wheel rim. The demountable .rim is then slippedv in place o'n the wheel rimv and given-a. slight turn so that the spring 25 will engage in the notch 5 in the lug Ll. The eccentrics T arr thentui'rned into the'positlon shown by the .full lines Vin Fig'. 3 so that the disks 1() enrelation to the wheel rim 1 will be elimi-l nated.

lVhile in the foregoing there has been shown and described the vpreferred embodiment of this invention, it is to be understood thatv such changes may be made in the combination and arrangement of parts as will fall within the spirit and scope of the invention as claimed. v

lVhat is claimed is: Y

1. A demountable rim' comprising a'pair of rim sections, lugs carried onthe inner faces of the rim sections and arranged to interlock, studs 'carried'by one of the rim sections, turn buttons on theI ends of the studs, a ring having'apertures therein arranged to fit the studded rim section, the aperturesin the ring receiving the studs, arms on the ring engaging the lugs on the rim sections, and means to removably hold the demountable rim on a wheel rim. I

2. .i demountable rim comprising a'pair of rim sections, inwardly extending lugs on the inner-faces of the rim sections, interlock ing tongues on the lugs adapted to hold the` rim sectionsl in their assembledv positions, studs carried by one of the rim sections, turn buttons on the ends ofthe studs,'a ring provided with slots therein to receive the studs on the rim sections, armson the rings engaging the lugs to prevent the rim sections from becoming separated and means to hold the rim on a wheel.'

3. A deniountable rim comprising a pair of rim sections, interlocking means carried by .said sections, and adapted to hold the rim sections in locked. positions when rotated in one direction and to unlock the sec tions when rotated in the opposite direction. lugscarried by one of the rim sections, rota'- table tongues on the lugs, aring provided with slots at spaced intervals therein, said slots being adapted to receive the lugsv and being of sufficient length to .slip over the tongues and means carried by the rings to fill the space between one of the end walls andthe lug to prevent the ring from being accidentally removed fromthe rim sections and means carried by saidring to prevent relative rotation of the rim sections and hold the same in their assembled positions. A

In testimony whereof I. aiiix my signature. 

